NCERT Important Questions Class 8 Science chapter 8 with Answer solution with pdf. Here We Provides Class 1 to 12 all Subjects NCERT Solution with Notes, Question Answer, CBSE and HBSE Important Questions, MCQ and old Question Papers for Students.
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CBSE and HBSE Solution of Class 8 Science chapter 8 Force and Pressure important Questions And Answer solution.
Class 8 Science Chapter 8 Important Questions and Answer
Q.1 What is Force?
Ans – A Push or Pull on an object is called force. Force is the interaction between two objects.
Q.2 What happens when force is applied on an object?
Ans – Force can Change much value of an object. let’s read one by one.
- A force can change state of motion
- Force can change the shape of an object
- Same direction force added with each other
Q.3 What is muscular force?
Ans – Muscular force is a contact force where muscles apply force on an object. Example- Pushing a car.
Q.4 What is Friction?
Ans – The force that opposes the applied force on an object is called friction. Every motion has a force of friction.
Q.5 What is Magnetic Force?
Ans – Magnetic force is a non-contact force where the force of attraction and repulsion is experienced without any contact of magnets.
Q.6 What is Electrostatic force?
Ans – The force exerted by a charged body to another charged or uncharged body is called electrostatic force.
Q.7 What is gravitational force?
Ans – The attraction force heavier body towards other bodies is called gravitational force. Example- Revolution of the earth around the sun due to Gravitational force.
Q.8 What is Pressure?
Ans – The total force applied on a unit area of a surface is called pressure. Pressure = Force / Area.
Q.9 What is Atmospheric pressure?
Ans – Pressure applied by atmospheric gases on an object is called atmospheric pressure. This pressure may vary with the density of air.
Q.10 Which factor affect pressure applied on an object?
Ans – There are the following factors that affect pressure on an object.
- Applied force
- Area of an object
- State of an object like solid, liquid and gas